Surface configuration of an engine cover



FIG. 1 is a perspective view of a surface configuration of an engine cover according to my novel design;

FIG. 2 is a top view thereof; and,

FIG. 3 is a front perspective view thereof.

The broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a surface configuration of an engine cover, as shown and described. 